Blogpost archive

This is a list of all my blogposts. They range from highly technical to entry level, from Linux to PHP and server management.

If you have an interesting topic to write about, reach out and I'll see what I can do.

2011-09

2011-09-10 Zabbix: Can’t recreate shared memory for collector. [too many attempts]
2011-09-10 Zabbix: zabbix_agentd: Can’t recreate Zabbix semaphores for IPC key 0x123456 Semaphore ID 123456. Operation not permitted.

2011-08

2011-08-28 This is what Open Source is about: Mobile Zabbix used on Hospital Ship
2011-08-28 Post-it wars at the office: Mario & Princess Peach
2011-08-21 4 days without an iPhone
2011-08-20 Plesk: Unable to validate password policy: (1753) There are no more endpoints available from the endpoint mapper.
2011-08-19 Pukkelpop: overzicht van de chaos
2011-08-08 Find in Bash scripting: paths must precede expression
2011-08-02 Postfix in Plesk: Out: 451 4.3.0 Error: queue file write error

2011-07

2011-07-31 Latest tool: QuickDiff – visually showing the differences between text
2011-07-28 MySQL: table is read-only
2011-07-25 Windows Virtuozzo: unable to copy registry key on container start
2011-07-19 Installing the PECL/PEAR mailparse module for PHP on CentOS
2011-07-03 Finished a draft Varnish 3.0 VCL for Fork CMS
2011-07-02 Checking for MySQL optimizations via scripts

2011-06

2011-06-29 Posting my Varnish 3.0 configs to Github
2011-06-29 Useful Varnish 3.0 Commands: one-liners with varnishtop and varnishlog
2011-06-29 Add an existing user to an existing group in Linux
2011-06-19 VMware ESX(i) & Windows Server 2008: Updated driver for sluggish console access

2011-05

2011-05-26 Plesk Password retrieval via the command line (Linux / Windows)
2011-05-23 Fixing Listen IPs In IIS (The network location cannot be reached)
2011-05-19 The Kindle (e-Reader): your best travel companion

2011-04

2011-04-28 Getting verbose debug info on nss_ldap in CentOS (LDAP)
2011-04-21 Amazon EC² downtime: a collection of horror stories
2011-04-21 Guide: running NginX 1.0 with PHP-FPM 5.3 on CentOS 5.x
2011-04-18 Using Perl regex for faster grep
2011-04-03 WikiLeaks Mirror Hosting Page now offline
2011-04-02 Linux: preserving color output on match when piping grep to more/less

2011-03

2011-03-30 How is facebook tracking our (outgoing) URLs?
2011-03-29 Rebuilding your RPM package database: fixing RPM/yum problems
2011-03-25 My “Real Security in a Virtual Environment” Presentation
2011-03-24 Recovering from a DRBD split-brain scenario in heartbeat
2011-03-17 The “SHOW PROCESSLIST;” equivalent in Microsoft SQL-Server
2011-03-14 VMWare Converter: vmodl.MethodFault (CloneVolume Error)
2011-03-13 Firefox extension: the ‘Shortlink Revealer’ (bit.ly exposer – Proof of Concept)
2011-03-11 Getting started with Git: linkpost
2011-03-04 CentOS, Git & http-push unavailable (git not compiled with USE_CURL_MULTI)
2011-03-03 Profiling: Learning from Engadget’s infrastructure on traffic spike handling (ie: iPad2 launch)

2011-02

2011-02-28 CentOS, Apache & mod_fcgid: IPCCommTimeout not working as expected
2011-02-25 There’s more to the php.net site than meets the eye
2011-02-19 Building your own kernel based on CentOS, ‘switchroot: mount failed. Kernel Panic.’
2011-02-14 Resizing a DRBD Resource Built On A LVM
2011-02-12 Compiling PHP on a 64bit CentOS installation
2011-02-07 Silly Yum Tricks: whatprovides, groups & repolist
2011-02-03 CentOS, Heartbeat, DRBD & NFS: umount failed, device is busy

2011-01

2010-12

2010-12-31 2010 in numbers: statistics, statistics & statistics
2010-12-19 MySQL – myisamchk: error: myisam_sort_buffer_size is too small
2010-12-14 Compile: /usr/bin/ld: cannot find -lltdl, collect2: ld returned 1 exit status
2010-12-06 WikiLeaks’ mirrors: where are they hosted?
2010-12-01 Tracking root cause of Apache spawned processes: shell scripts / daemons
2010-12-01 MySQL: “Table ‘mysql.plugin’ doesn’t exist” after MySQL Upgrade

2010-11

2010-11-26 Df command in Linux not updating actual diskspace, wrong data
2010-11-23 Introducing the ‘Decoder, Encoder & Obfuscator’
2010-11-17 vCenter Converter: Shrink Disk Size of EXT4 System Not Supported
2010-11-15 Plesk 10 Update: Update/Autoinstaller Port Change & Plesk Panel Port Redirection on Virtuozzo
2010-11-11 Introducing the Extended Mail Header Parser
2010-11-04 A custom init.d start-up script for HAProxy: start, stop, restart, reload, checkconfig

2010-10

2010-10-29 Enabling json_encode And json_decode in PHP < 5.2.0 (JSON)
2010-10-22 Advanced Monitoring Of HAProxy With Zabbix Agent
2010-10-13 Let Plesk Create Zend Directories Whenever A Physical Hosting (domain) Is Added

2010-09

2010-09-30 Maximizing PHP’s Mail Throughput: To Fork Or Not To Fork?
2010-09-19 MoZBX: The Mobile Zabbix Client
2010-09-12 My BarCamp Antwerp Presentation: “High Availability in IT = AAARGH”
2010-09-07 Compile HAProxy With TPROXY Support
2010-09-01 Compile a (CentOS) Kernel And IPTables With TPROXY Support

2010-08

2010-08-27 Increase A VMware Disk Size (VMDK) Formatted As Linux LVM without rebooting
2010-08-26 Compiling, Running and Cursing on Chromium OS – Getting It To Work
2010-08-26 Exclude Local Networks Via Juniper NetScreen-Remote VPN
2010-08-23 WordPress v3.1, v3.2: Don’t Replace (Double & Single) Dashes & (Double & Single) Quotes!
2010-08-19 Chromium OS: error: RPC failed; result=22, HTTP code = 502
2010-08-16 VMware: internal error – vmodl.fault.HostCommunication
2010-08-14 Facebook’s Techtalks Worth Watching
2010-08-07 MySQL Upgrade To 5.1: Database Name Prefix #mysql50#

2010-07

2010-07-31 Deploying Undersea Cables: Laying The Internet’s Backbone
2010-07-30 System Administrator Appreciation Day 2010 @ Nucleus
2010-07-22 phpsh: Running An Interactive PHP Shell (Python)
2010-07-12 Implementing & Maintaining DNSSEC On Bind9 Nameservers
2010-07-06 How, What and Why – On Scalability, Availability & Manageability (Facebook)

2010-05

2010-05-30 Selling A Classic Mini British Open (Special Edition)

2010-04

2010-04-14 TCP Traffic Redirection on Windows
2010-04-09 How IPv6 Headers Are Formed, Compared To IPv4
2010-04-06 IPv6 And Security: What You Probably Don’t Know
2010-04-02 Stateless Autoconfiguration To Replace DHCP For Some Systems

2010-03

2010-03-29 Don’t Upgrade OpenSSL If You’re Using Plesk (= Broken Controlpanel)
2010-03-27 Neighbor Discovery (ND) To Replace ARP In IPv6
2010-03-24 IPv6 Address Space & Reservations
2010-03-21 Address Types: Unicast, Multicast & Anycast
2010-03-18 Address Notations In IPv6
2010-03-16 Recycling older IPv6-related posts

2010-02

2010-02-23 “Show Full Processlist;” Equivalent Of MySQL For PostgreSQL
2010-02-17 Top 25 Most Dangerous Programming Errors

2010-01

2010-01-13 BackTrack 4 Final Release

2009-12

2009-12-27 NetBIOS exploiting

2009-09

2009-09-19 MetaData: I’ll Bet You Thought That Was Private?
2009-09-08 Using rsync over cp: don’t we just love progressbars?

2009-08

2009-08-28 Define Happiness: The Act Of Making Someone Else Happy

2009-07

2009-07-31 System Administrator Appreciation Day @ Nucleus = Win